Dynamic information storage or retrieval – Storage or retrieval by simultaneous application of diverse... – Magnetic field and light beam
Reexamination Certificate
2007-12-25
2007-12-25
Dinh, Tan (Department: 2627)
Dynamic information storage or retrieval
Storage or retrieval by simultaneous application of diverse...
Magnetic field and light beam
C369S013520
Reexamination Certificate
active
10725027
ABSTRACT:
Provided is a magneto-optical recording medium capable of accurately reproducing a signal of a recording density exceeding a resolution of an optical system without making a constitution thereof complicated. The magnetic domain wall displacement type magneto-optical recording medium, comprises: a magnetic domain wall displacement layer in which a magnetic domain wall moves to contribute to information reproduction; a memory layer holding a recorded magnetic domain corresponding to the information; and a switching layer which is arranged between the magnetic domain wall displacement layer and the memory layer and has a Curie temperature lower than Curie temperatures of the magnetic domain wall displacement layer and the memory layer. In the recording medium, the magnetic domain wall displacement layer is constituted of two or more magnetized films, and a magnitude of a net magnetization of the magnetic domain wall displacement layer in a temperature range from the Curie temperature of the switching layer to the Curie temperature of the magnetic domain wall displacement layer is substantially zero.
REFERENCES:
patent: 6027825 (2000-02-01), Shiratori et al.
patent: 6125083 (2000-09-01), Nishimura et al.
patent: 6150038 (2000-11-01), Hirokane et al.
patent: 6265062 (2001-07-01), Shiratori
patent: 6403148 (2002-06-01), Shiratori et al.
patent: 6707767 (2004-03-01), Hiroki
patent: 6894954 (2005-05-01), Aoki
patent: 7012857 (2006-03-01), Murakami et al.
patent: 7173885 (2007-02-01), Miyakoshi et al.
patent: 2002/0085457 (2002-07-01), Hiroki
patent: 2002/0089898 (2002-07-01), Hiroki
patent: 2004/0163097 (2004-08-01), Miyakoshi et al.
patent: 06-290496 (1994-10-01), None
patent: 7-334877 (1995-12-01), None
patent: 10-092031 (1998-04-01), None
patent: 2000-021036 (2000-01-01), None
patent: 2000-163815 (2000-06-01), None
patent: 2002-208195 (2002-07-01), None
patent: 2003-203405 (2003-07-01), None
High-Density Magneto-Optical Recording With Domain Wall Displacement Detection, Shiratori et al, Proceeding Of Magneto-optical Recording International Symposium, vol. 22, pp. 47-50, 1998.
Canon Kabushiki Kaisha
Dinh Tan
Fitzpatrick ,Cella, Harper & Scinto
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